libwebsockets
Lightweight C library for HTML5 websockets
lws-logs.h
1 /*
2  * libwebsockets - small server side websockets and web server implementation
3  *
4  * Copyright (C) 2010 - 2021 Andy Green <andy@warmcat.com>
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a copy
7  * of this software and associated documentation files (the "Software"), to
8  * deal in the Software without restriction, including without limitation the
9  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10  * sell copies of the Software, and to permit persons to whom the Software is
11  * furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included in
14  * all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
22  * IN THE SOFTWARE.
23  */
24 
39 
40 #define LLL_ERR (1 << 0)
41 #define LLL_WARN (1 << 1)
42 #define LLL_NOTICE (1 << 2)
43 #define LLL_INFO (1 << 3)
44 #define LLL_DEBUG (1 << 4)
45 #define LLL_PARSER (1 << 5)
46 #define LLL_HEADER (1 << 6)
47 #define LLL_EXT (1 << 7)
48 #define LLL_CLIENT (1 << 8)
49 #define LLL_LATENCY (1 << 9)
50 #define LLL_USER (1 << 10)
51 #define LLL_THREAD (1 << 11)
52 
53 #define LLL_COUNT (12) /* set to count of valid flags */
54 
55 #define LLLF_SECRECY_PII (1 << 16)
57 #define LLLF_SECRECY_BEARER (1 << 17)
60 #define LLLF_LOG_TIMESTAMP (1 << 18)
63 #define LLLF_LOG_CONTEXT_AWARE (1 << 30)
67 struct lws_log_cx;
68 
69 typedef void (*lws_log_emit_t)(int level, const char *line);
70 typedef void (*lws_log_emit_cx_t)(struct lws_log_cx *cx, int level,
71  const char *line, size_t len);
72 typedef void (*lws_log_prepend_cx_t)(struct lws_log_cx *cx, void *obj,
73  char **p, char *e);
74 typedef void (*lws_log_use_cx_t)(struct lws_log_cx *cx, int _new);
75 
76 /*
77  * This is the logging context
78  */
79 
80 typedef struct lws_log_cx {
81  union {
82  lws_log_emit_t emit; /* legacy emit function */
83  lws_log_emit_cx_t emit_cx; /* LLLF_LOG_CONTEXT_AWARE */
84  } u;
85  lws_log_use_cx_t refcount_cb;
89  lws_log_prepend_cx_t prepend;
92  struct lws_log_cx *parent;
94  void *opaque;
96  void *stg;
98  uint32_t lll_flags;
100  int32_t refcount;
102 } lws_log_cx_t;
103 
113 LWS_VISIBLE LWS_EXTERN int
114 lwsl_timestamp(int level, char *p, size_t len);
115 
116 #if defined(LWS_PLAT_OPTEE) && !defined(LWS_WITH_NETWORK)
117 #define _lws_log(aaa, ...) SMSG(__VA_ARGS__)
118 #else
119 LWS_VISIBLE LWS_EXTERN void
120 _lws_log(int filter, const char *format, ...) LWS_FORMAT(2);
121 LWS_VISIBLE LWS_EXTERN void
122 _lws_logv(int filter, const char *format, va_list vl);
123 #endif
124 
125 struct lws_vhost;
126 struct lws;
127 
128 LWS_VISIBLE LWS_EXTERN struct lws_log_cx *
129 lwsl_context_get_cx(struct lws_context *cx);
130 LWS_VISIBLE LWS_EXTERN struct lws_log_cx *
131 lwsl_vhost_get_cx(struct lws_vhost *vh);
132 LWS_VISIBLE LWS_EXTERN struct lws_log_cx *
133 lwsl_wsi_get_cx(struct lws *wsi);
134 #if defined(LWS_WITH_SECURE_STREAMS)
135 struct lws_ss_handle;
136 struct lws_sspc_handle;
137 LWS_VISIBLE LWS_EXTERN struct lws_log_cx *
138 lwsl_ss_get_cx(struct lws_ss_handle *ss);
139 LWS_VISIBLE LWS_EXTERN struct lws_log_cx *
140 lwsl_sspc_get_cx(struct lws_sspc_handle *ss);
141 #endif
142 
143 LWS_VISIBLE LWS_EXTERN void
144 lws_log_emit_cx_file(struct lws_log_cx *cx, int level, const char *line,
145  size_t len);
146 
147 LWS_VISIBLE LWS_EXTERN void
148 lws_log_use_cx_file(struct lws_log_cx *cx, int _new);
149 
150 LWS_VISIBLE LWS_EXTERN void
151 lws_log_prepend_context(struct lws_log_cx *cx, void *obj, char **p, char *e);
152 LWS_VISIBLE LWS_EXTERN void
153 lws_log_prepend_vhost(struct lws_log_cx *cx, void *obj, char **p, char *e);
154 LWS_VISIBLE LWS_EXTERN void
155 lws_log_prepend_wsi(struct lws_log_cx *cx, void *obj, char **p, char *e);
156 #if defined(LWS_WITH_SECURE_STREAMS)
157 LWS_VISIBLE LWS_EXTERN void
158 lws_log_prepend_ss(struct lws_log_cx *cx, void *obj, char **p, char *e);
159 LWS_VISIBLE LWS_EXTERN void
160 lws_log_prepend_sspc(struct lws_log_cx *cx, void *obj, char **p, char *e);
161 #endif
162 
163 LWS_VISIBLE LWS_EXTERN void
164 _lws_log_cx(lws_log_cx_t *cx, lws_log_prepend_cx_t prep, void *obj,
165  int filter, const char *_fun, const char *format, ...) LWS_FORMAT(6);
166 
167 #define lwsl_cx(_c, _fil, ...) \
168  _lws_log_cx(lwsl_context_get_cx(_c), lws_log_prepend_context, \
169  _c, _fil, __func__, __VA_ARGS__)
170 #define lwsl_vhost(_v, _fil, ...) \
171  _lws_log_cx(lwsl_vhost_get_cx(_v), lws_log_prepend_vhost, _v, \
172  _fil, __func__, __VA_ARGS__)
173 #define lwsl_wsi(_w, _fil, ...) \
174  _lws_log_cx(lwsl_wsi_get_cx(_w), lws_log_prepend_wsi, _w, \
175  _fil, __func__, __VA_ARGS__)
176 #define lwsl_ss(_h, _fil, ...) \
177  _lws_log_cx(lwsl_ss_get_cx(_h), lws_log_prepend_ss, _h, \
178  _fil, __func__, __VA_ARGS__)
179 
180 #define lwsl_hexdump_context(_c, _fil, _buf, _len) \
181  lwsl_hexdump_level_cx(lwsl_context_get_cx(_c), \
182  lws_log_prepend_context, \
183  _c, _fil, _buf, _len)
184 #define lwsl_hexdump_vhost(_v, _fil, _buf, _len) \
185  lwsl_hexdump_level_cx(lwsl_vhost_get_cx(_v), \
186  lws_log_prepend_vhost, \
187  _v, _fil, _buf, _len)
188 #define lwsl_hexdump_wsi(_w, _fil, _buf, _len) \
189  lwsl_hexdump_level_cx(lwsl_wsi_get_cx(_w), \
190  lws_log_prepend_wsi, \
191  _w, _fil, _buf, _len)
192 #define lwsl_hexdump_ss(_h, _fil, _buf, _len) \
193  lwsl_hexdump_level_cx(lwsl_ss_get_cx(_h), \
194  lws_log_prepend_ss, \
195  _h, _fil, _buf, _len)
196 
197 /*
198  * Figure out which logs to build in or not
199  */
200 
201 #if defined(_DEBUG)
202  /*
203  * In DEBUG build, select all logs unless NO_LOGS
204  */
205  #if defined(LWS_WITH_NO_LOGS)
206  #define _LWS_LINIT (LLL_ERR | LLL_USER)
207  #else
208  #define _LWS_LINIT ((1 << LLL_COUNT) - 1)
209  #endif
210 #else /* not _DEBUG */
211 #if defined(LWS_WITH_NO_LOGS)
212 #define _LWS_LINIT (LLL_ERR | LLL_USER)
213 #else
214  #define _LWS_LINIT (LLL_ERR | LLL_USER | LLL_WARN | LLL_NOTICE)
215 #endif
216 #endif /* _DEBUG */
217 
218 /*
219  * Create either empty overrides or the ones forced at build-time.
220  * These overrides have the final say... any bits set in
221  * LWS_LOGGING_BITFIELD_SET force the build of those logs, any bits
222  * set in LWS_LOGGING_BITFIELD_CLEAR disable the build of those logs.
223  *
224  * If not defined lws decides based on CMAKE_BUILD_TYPE=DEBUG or not
225  */
226 
227 #if defined(LWS_LOGGING_BITFIELD_SET)
228  #define _LWS_LBS (LWS_LOGGING_BITFIELD_SET)
229 #else
230  #define _LWS_LBS 0
231 #endif
232 
233 #if defined(LWS_LOGGING_BITFIELD_CLEAR)
234  #define _LWS_LBC (LWS_LOGGING_BITFIELD_CLEAR)
235 #else
236  #define _LWS_LBC 0
237 #endif
238 
239 /*
240  * Compute the final active logging bitfield for build
241  */
242 #define _LWS_ENABLED_LOGS (((_LWS_LINIT) | (_LWS_LBS)) & ~(_LWS_LBC))
243 
244 /*
245  * Individually enable or disable log levels for build
246  * depending on what was computed
247  */
248 
249 /*
250  * Process scope logs
251  */
252 
253 #if (_LWS_ENABLED_LOGS & LLL_ERR)
254 #define lwsl_err(...) _lws_log(LLL_ERR, __VA_ARGS__)
255 #else
256 #define lwsl_err(...) do {} while(0)
257 #endif
258 
259 #if (_LWS_ENABLED_LOGS & LLL_WARN)
260 #define lwsl_warn(...) _lws_log(LLL_WARN, __VA_ARGS__)
261 #else
262 #define lwsl_warn(...) do {} while(0)
263 #endif
264 
265 #if (_LWS_ENABLED_LOGS & LLL_NOTICE)
266 #define lwsl_notice(...) _lws_log(LLL_NOTICE, __VA_ARGS__)
267 #else
268 #define lwsl_notice(...) do {} while(0)
269 #endif
270 
271 #if (_LWS_ENABLED_LOGS & LLL_INFO)
272 #define lwsl_info(...) _lws_log(LLL_INFO, __VA_ARGS__)
273 #else
274 #define lwsl_info(...) do {} while(0)
275 #endif
276 
277 #if (_LWS_ENABLED_LOGS & LLL_DEBUG)
278 #define lwsl_debug(...) _lws_log(LLL_DEBUG, __VA_ARGS__)
279 #else
280 #define lwsl_debug(...) do {} while(0)
281 #endif
282 
283 #if (_LWS_ENABLED_LOGS & LLL_PARSER)
284 #define lwsl_parser(...) _lws_log(LLL_PARSER, __VA_ARGS__)
285 #else
286 #define lwsl_parser(...) do {} while(0)
287 #endif
288 
289 #if (_LWS_ENABLED_LOGS & LLL_HEADER)
290 #define lwsl_header(...) _lws_log(LLL_HEADER, __VA_ARGS__)
291 #else
292 #define lwsl_header(...) do {} while(0)
293 #endif
294 
295 #if (_LWS_ENABLED_LOGS & LLL_EXT)
296 #define lwsl_ext(...) _lws_log(LLL_EXT, __VA_ARGS__)
297 #else
298 #define lwsl_ext(...) do {} while(0)
299 #endif
300 
301 #if (_LWS_ENABLED_LOGS & LLL_CLIENT)
302 #define lwsl_client(...) _lws_log(LLL_CLIENT, __VA_ARGS__)
303 #else
304 #define lwsl_client(...) do {} while(0)
305 #endif
306 
307 #if (_LWS_ENABLED_LOGS & LLL_LATENCY)
308 #define lwsl_latency(...) _lws_log(LLL_LATENCY, __VA_ARGS__)
309 #else
310 #define lwsl_latency(...) do {} while(0)
311 #endif
312 
313 #if (_LWS_ENABLED_LOGS & LLL_THREAD)
314 #define lwsl_thread(...) _lws_log(LLL_THREAD, __VA_ARGS__)
315 #else
316 #define lwsl_thread(...) do {} while(0)
317 #endif
318 
319 #if (_LWS_ENABLED_LOGS & LLL_USER)
320 #define lwsl_user(...) _lws_log(LLL_USER, __VA_ARGS__)
321 #else
322 #define lwsl_user(...) do {} while(0)
323 #endif
324 
325 #define lwsl_hexdump_err(...) lwsl_hexdump_level(LLL_ERR, __VA_ARGS__)
326 #define lwsl_hexdump_warn(...) lwsl_hexdump_level(LLL_WARN, __VA_ARGS__)
327 #define lwsl_hexdump_notice(...) lwsl_hexdump_level(LLL_NOTICE, __VA_ARGS__)
328 #define lwsl_hexdump_info(...) lwsl_hexdump_level(LLL_INFO, __VA_ARGS__)
329 #define lwsl_hexdump_debug(...) lwsl_hexdump_level(LLL_DEBUG, __VA_ARGS__)
330 
331 /*
332  * lws_context scope logs
333  */
334 
335 #if (_LWS_ENABLED_LOGS & LLL_ERR)
336 #define lwsl_cx_err(_c, ...) lwsl_cx(_c, LLL_ERR, __VA_ARGS__)
337 #else
338 #define lwsl_cx_err(_c, ...) do {} while(0)
339 #endif
340 
341 #if (_LWS_ENABLED_LOGS & LLL_WARN)
342 #define lwsl_cx_warn(_c, ...) lwsl_cx(_c, LLL_WARN, __VA_ARGS__)
343 #else
344 #define lwsl_cx_warn(_c, ...) do {} while(0)
345 #endif
346 
347 #if (_LWS_ENABLED_LOGS & LLL_NOTICE)
348 #define lwsl_cx_notice(_c, ...) lwsl_cx(_c, LLL_NOTICE, __VA_ARGS__)
349 #else
350 #define lwsl_cx_notice(_c, ...) do {} while(0)
351 #endif
352 
353 #if (_LWS_ENABLED_LOGS & LLL_INFO)
354 #define lwsl_cx_info(_c, ...) lwsl_cx(_c, LLL_INFO, __VA_ARGS__)
355 #else
356 #define lwsl_cx_info(_c, ...) do {} while(0)
357 #endif
358 
359 #if (_LWS_ENABLED_LOGS & LLL_DEBUG)
360 #define lwsl_cx_debug(_c, ...) lwsl_cx(_c, LLL_DEBUG, __VA_ARGS__)
361 #else
362 #define lwsl_cx_debug(_c, ...) do {} while(0)
363 #endif
364 
365 #if (_LWS_ENABLED_LOGS & LLL_PARSER)
366 #define lwsl_cx_parser(_c, ...) lwsl_cx(_c, LLL_PARSER, __VA_ARGS__)
367 #else
368 #define lwsl_cx_parser(_c, ...) do {} while(0)
369 #endif
370 
371 #if (_LWS_ENABLED_LOGS & LLL_HEADER)
372 #define lwsl_cx_header(_c, ...) lwsl_cx(_c, LLL_HEADER, __VA_ARGS__)
373 #else
374 #define lwsl_cx_header(_c, ...) do {} while(0)
375 #endif
376 
377 #if (_LWS_ENABLED_LOGS & LLL_EXT)
378 #define lwsl_cx_ext(_c, ...) lwsl_cx(_c, LLL_EXT, __VA_ARGS__)
379 #else
380 #define lwsl_cx_ext(_c, ...) do {} while(0)
381 #endif
382 
383 #if (_LWS_ENABLED_LOGS & LLL_CLIENT)
384 #define lwsl_cx_client(_c, ...) lwsl_cx(_c, LLL_CLIENT, __VA_ARGS__)
385 #else
386 #define lwsl_cx_client(_c, ...) do {} while(0)
387 #endif
388 
389 #if (_LWS_ENABLED_LOGS & LLL_LATENCY)
390 #define lwsl_cx_latency(_c, ...) lwsl_cx(_c, LLL_LATENCY, __VA_ARGS__)
391 #else
392 #define lwsl_cx_latency(_c, ...) do {} while(0)
393 #endif
394 
395 #if (_LWS_ENABLED_LOGS & LLL_THREAD)
396 #define lwsl_cx_thread(_c, ...) lwsl_cx(_c, LLL_THREAD, __VA_ARGS__)
397 #else
398 #define lwsl_cx_thread(_c, ...) do {} while(0)
399 #endif
400 
401 #if (_LWS_ENABLED_LOGS & LLL_USER)
402 #define lwsl_cx_user(_c, ...) lwsl_cx(_c, LLL_USER, __VA_ARGS__)
403 #else
404 #define lwsl_cx_user(_c, ...) do {} while(0)
405 #endif
406 
407 #define lwsl_hexdump_cx_err(_c, ...) lwsl_hexdump_context(_c, LLL_ERR, __VA_ARGS__)
408 #define lwsl_hexdump_cx_warn(_c, ...) lwsl_hexdump_context(_c, LLL_WARN, __VA_ARGS__)
409 #define lwsl_hexdump_cx_notice(_c, ...) lwsl_hexdump_context(_c, LLL_NOTICE, __VA_ARGS__)
410 #define lwsl_hexdump_cx_info(_c, ...) lwsl_hexdump_context(_c, LLL_INFO, __VA_ARGS__)
411 #define lwsl_hexdump_cx_debug(_c, ...) lwsl_hexdump_context(_c, LLL_DEBUG, __VA_ARGS__)
412 
413 /*
414  * lws_vhost
415  */
416 
417 #if (_LWS_ENABLED_LOGS & LLL_ERR)
418 #define lwsl_vhost_err(_v, ...) lwsl_vhost(_v, LLL_ERR, __VA_ARGS__)
419 #else
420 #define lwsl_vhost_err(_v, ...) do {} while(0)
421 #endif
422 
423 #if (_LWS_ENABLED_LOGS & LLL_WARN)
424 #define lwsl_vhost_warn(_v, ...) lwsl_vhost(_v, LLL_WARN, __VA_ARGS__)
425 #else
426 #define lwsl_vhost_warn(_v, ...) do {} while(0)
427 #endif
428 
429 #if (_LWS_ENABLED_LOGS & LLL_NOTICE)
430 #define lwsl_vhost_notice(_v, ...) lwsl_vhost(_v, LLL_NOTICE, __VA_ARGS__)
431 #else
432 #define lwsl_vhost_notice(_v, ...) do {} while(0)
433 #endif
434 
435 #if (_LWS_ENABLED_LOGS & LLL_INFO)
436 #define lwsl_vhost_info(_v, ...) lwsl_vhost(_v, LLL_INFO, __VA_ARGS__)
437 #else
438 #define lwsl_vhost_info(_v, ...) do {} while(0)
439 #endif
440 
441 #if (_LWS_ENABLED_LOGS & LLL_DEBUG)
442 #define lwsl_vhost_debug(_v, ...) lwsl_vhost(_v, LLL_DEBUG, __VA_ARGS__)
443 #else
444 #define lwsl_vhost_debug(_v, ...) do {} while(0)
445 #endif
446 
447 #if (_LWS_ENABLED_LOGS & LLL_PARSER)
448 #define lwsl_vhost_parser(_v, ...) lwsl_vhost(_v, LLL_PARSER, __VA_ARGS__)
449 #else
450 #define lwsl_vhost_parser(_v, ...) do {} while(0)
451 #endif
452 
453 #if (_LWS_ENABLED_LOGS & LLL_HEADER)
454 #define lwsl_vhost_header(_v, ...) lwsl_vhost(_v, LLL_HEADER, __VA_ARGS__)
455 #else
456 #define lwsl_vhost_header(_v, ...) do {} while(0)
457 #endif
458 
459 #if (_LWS_ENABLED_LOGS & LLL_EXT)
460 #define lwsl_vhost_ext(_v, ...) lwsl_vhost(_v, LLL_EXT, __VA_ARGS__)
461 #else
462 #define lwsl_vhost_ext(_v, ...) do {} while(0)
463 #endif
464 
465 #if (_LWS_ENABLED_LOGS & LLL_CLIENT)
466 #define lwsl_vhost_client(_v, ...) lwsl_vhost(_v, LLL_CLIENT, __VA_ARGS__)
467 #else
468 #define lwsl_vhost_client(_v, ...) do {} while(0)
469 #endif
470 
471 #if (_LWS_ENABLED_LOGS & LLL_LATENCY)
472 #define lwsl_vhost_latency(_v, ...) lwsl_vhost(_v, LLL_LATENCY, __VA_ARGS__)
473 #else
474 #define lwsl_vhost_latency(_v, ...) do {} while(0)
475 #endif
476 
477 #if (_LWS_ENABLED_LOGS & LLL_THREAD)
478 #define lwsl_vhost_thread(_v, ...) lwsl_vhost(_v, LLL_THREAD, __VA_ARGS__)
479 #else
480 #define lwsl_vhost_thread(_v, ...) do {} while(0)
481 #endif
482 
483 #if (_LWS_ENABLED_LOGS & LLL_USER)
484 #define lwsl_vhost_user(_v, ...) lwsl_vhost(_v, LLL_USER, __VA_ARGS__)
485 #else
486 #define lwsl_vhost_user(_v, ...) do {} while(0)
487 #endif
488 
489 #define lwsl_hexdump_vhost_err(_v, ...) lwsl_hexdump_vhost(_v, LLL_ERR, __VA_ARGS__)
490 #define lwsl_hexdump_vhost_warn(_v, ...) lwsl_hexdump_vhost(_v, LLL_WARN, __VA_ARGS__)
491 #define lwsl_hexdump_vhost_notice(_v, ...) lwsl_hexdump_vhost(_v, LLL_NOTICE, __VA_ARGS__)
492 #define lwsl_hexdump_vhost_info(_v, ...) lwsl_hexdump_vhost(_v, LLL_INFO, __VA_ARGS__)
493 #define lwsl_hexdump_vhost_debug(_v, ...) lwsl_hexdump_vhost(_v, LLL_DEBUG, __VA_ARGS__)
494 
495 
496 /*
497  * lws_wsi
498  */
499 
500 #if (_LWS_ENABLED_LOGS & LLL_ERR)
501 #define lwsl_wsi_err(_w, ...) lwsl_wsi(_w, LLL_ERR, __VA_ARGS__)
502 #else
503 #define lwsl_wsi_err(_w, ...) do {} while(0)
504 #endif
505 
506 #if (_LWS_ENABLED_LOGS & LLL_WARN)
507 #define lwsl_wsi_warn(_w, ...) lwsl_wsi(_w, LLL_WARN, __VA_ARGS__)
508 #else
509 #define lwsl_wsi_warn(_w, ...) do {} while(0)
510 #endif
511 
512 #if (_LWS_ENABLED_LOGS & LLL_NOTICE)
513 #define lwsl_wsi_notice(_w, ...) lwsl_wsi(_w, LLL_NOTICE, __VA_ARGS__)
514 #else
515 #define lwsl_wsi_notice(_w, ...) do {} while(0)
516 #endif
517 
518 #if (_LWS_ENABLED_LOGS & LLL_INFO)
519 #define lwsl_wsi_info(_w, ...) lwsl_wsi(_w, LLL_INFO, __VA_ARGS__)
520 #else
521 #define lwsl_wsi_info(_w, ...) do {} while(0)
522 #endif
523 
524 #if (_LWS_ENABLED_LOGS & LLL_DEBUG)
525 #define lwsl_wsi_debug(_w, ...) lwsl_wsi(_w, LLL_DEBUG, __VA_ARGS__)
526 #else
527 #define lwsl_wsi_debug(_w, ...) do {} while(0)
528 #endif
529 
530 #if (_LWS_ENABLED_LOGS & LLL_PARSER)
531 #define lwsl_wsi_parser(_w, ...) lwsl_wsi(_w, LLL_PARSER, __VA_ARGS__)
532 #else
533 #define lwsl_wsi_parser(_w, ...) do {} while(0)
534 #endif
535 
536 #if (_LWS_ENABLED_LOGS & LLL_HEADER)
537 #define lwsl_wsi_header(_w, ...) lwsl_wsi(_w, LLL_HEADER, __VA_ARGS__)
538 #else
539 #define lwsl_wsi_header(_w, ...) do {} while(0)
540 #endif
541 
542 #if (_LWS_ENABLED_LOGS & LLL_EXT)
543 #define lwsl_wsi_ext(_w, ...) lwsl_wsi(_w, LLL_EXT, __VA_ARGS__)
544 #else
545 #define lwsl_wsi_ext(_w, ...) do {} while(0)
546 #endif
547 
548 #if (_LWS_ENABLED_LOGS & LLL_CLIENT)
549 #define lwsl_wsi_client(_w, ...) lwsl_wsi(_w, LLL_CLIENT, __VA_ARGS__)
550 #else
551 #define lwsl_wsi_client(_w, ...) do {} while(0)
552 #endif
553 
554 #if (_LWS_ENABLED_LOGS & LLL_LATENCY)
555 #define lwsl_wsi_latency(_w, ...) lwsl_wsi(_w, LLL_LATENCY, __VA_ARGS__)
556 #else
557 #define lwsl_wsi_latency(_w, ...) do {} while(0)
558 #endif
559 
560 #if (_LWS_ENABLED_LOGS & LLL_THREAD)
561 #define lwsl_wsi_thread(_w, ...) lwsl_wsi(_w, LLL_THREAD, __VA_ARGS__)
562 #else
563 #define lwsl_wsi_thread(_w, ...) do {} while(0)
564 #endif
565 
566 #if (_LWS_ENABLED_LOGS & LLL_USER)
567 #define lwsl_wsi_user(_w, ...) lwsl_wsi(_w, LLL_USER, __VA_ARGS__)
568 #else
569 #define lwsl_wsi_user(_w, ...) do {} while(0)
570 #endif
571 
572 #define lwsl_hexdump_wsi_err(_v, ...) lwsl_hexdump_wsi(_v, LLL_ERR, __VA_ARGS__)
573 #define lwsl_hexdump_wsi_warn(_v, ...) lwsl_hexdump_wsi(_v, LLL_WARN, __VA_ARGS__)
574 #define lwsl_hexdump_wsi_notice(_v, ...) lwsl_hexdump_wsi(_v, LLL_NOTICE, __VA_ARGS__)
575 #define lwsl_hexdump_wsi_info(_v, ...) lwsl_hexdump_wsi(_v, LLL_INFO, __VA_ARGS__)
576 #define lwsl_hexdump_wsi_debug(_v, ...) lwsl_hexdump_wsi(_v, LLL_DEBUG, __VA_ARGS__)
577 
578 
579 /*
580  * lwsl_ss
581  */
582 
583 #if (_LWS_ENABLED_LOGS & LLL_ERR)
584 #define lwsl_ss_err(_w, ...) lwsl_ss(_w, LLL_ERR, __VA_ARGS__)
585 #else
586 #define lwsl_ss_err(_w, ...) do {} while(0)
587 #endif
588 
589 #if (_LWS_ENABLED_LOGS & LLL_WARN)
590 #define lwsl_ss_warn(_w, ...) lwsl_ss(_w, LLL_WARN, __VA_ARGS__)
591 #else
592 #define lwsl_ss_warn(_w, ...) do {} while(0)
593 #endif
594 
595 #if (_LWS_ENABLED_LOGS & LLL_NOTICE)
596 #define lwsl_ss_notice(_w, ...) lwsl_ss(_w, LLL_NOTICE, __VA_ARGS__)
597 #else
598 #define lwsl_ss_notice(_w, ...) do {} while(0)
599 #endif
600 
601 #if (_LWS_ENABLED_LOGS & LLL_INFO)
602 #define lwsl_ss_info(_w, ...) lwsl_ss(_w, LLL_INFO, __VA_ARGS__)
603 #else
604 #define lwsl_ss_info(_w, ...) do {} while(0)
605 #endif
606 
607 #if (_LWS_ENABLED_LOGS & LLL_DEBUG)
608 #define lwsl_ss_debug(_w, ...) lwsl_ss(_w, LLL_DEBUG, __VA_ARGS__)
609 #else
610 #define lwsl_ss_debug(_w, ...) do {} while(0)
611 #endif
612 
613 #if (_LWS_ENABLED_LOGS & LLL_PARSER)
614 #define lwsl_ss_parser(_w, ...) lwsl_ss(_w, LLL_PARSER, __VA_ARGS__)
615 #else
616 #define lwsl_ss_parser(_w, ...) do {} while(0)
617 #endif
618 
619 #if (_LWS_ENABLED_LOGS & LLL_HEADER)
620 #define lwsl_ss_header(_w, ...) lwsl_ss(_w, LLL_HEADER, __VA_ARGS__)
621 #else
622 #define lwsl_ss_header(_w, ...) do {} while(0)
623 #endif
624 
625 #if (_LWS_ENABLED_LOGS & LLL_EXT)
626 #define lwsl_ss_ext(_w, ...) lwsl_ss(_w, LLL_EXT, __VA_ARGS__)
627 #else
628 #define lwsl_ss_ext(_w, ...) do {} while(0)
629 #endif
630 
631 #if (_LWS_ENABLED_LOGS & LLL_CLIENT)
632 #define lwsl_ss_client(_w, ...) lwsl_ss(_w, LLL_CLIENT, __VA_ARGS__)
633 #else
634 #define lwsl_ss_client(_w, ...) do {} while(0)
635 #endif
636 
637 #if (_LWS_ENABLED_LOGS & LLL_LATENCY)
638 #define lwsl_ss_latency(_w, ...) lwsl_ss(_w, LLL_LATENCY, __VA_ARGS__)
639 #else
640 #define lwsl_ss_latency(_w, ...) do {} while(0)
641 #endif
642 
643 #if (_LWS_ENABLED_LOGS & LLL_THREAD)
644 #define lwsl_ss_thread(_w, ...) lwsl_ss(_w, LLL_THREAD, __VA_ARGS__)
645 #else
646 #define lwsl_ss_thread(_w, ...) do {} while(0)
647 #endif
648 
649 #if (_LWS_ENABLED_LOGS & LLL_USER)
650 #define lwsl_ss_user(_w, ...) lwsl_ss(_w, LLL_USER, __VA_ARGS__)
651 #else
652 #define lwsl_ss_user(_w, ...) do {} while(0)
653 #endif
654 
655 #define lwsl_hexdump_ss_err(_v, ...) lwsl_hexdump_ss(_v, LLL_ERR, __VA_ARGS__)
656 #define lwsl_hexdump_ss_warn(_v, ...) lwsl_hexdump_ss(_v, LLL_WARN, __VA_ARGS__)
657 #define lwsl_hexdump_ss_notice(_v, ...) lwsl_hexdump_ss(_v, LLL_NOTICE, __VA_ARGS__)
658 #define lwsl_hexdump_ss_info(_v, ...) lwsl_hexdump_ss(_v, LLL_INFO, __VA_ARGS__)
659 #define lwsl_hexdump_ss_debug(_v, ...) lwsl_hexdump_ss(_v, LLL_DEBUG, __VA_ARGS__)
660 
661 
662 
673 LWS_VISIBLE LWS_EXTERN void
674 lwsl_hexdump_level(int level, const void *vbuf, size_t len);
675 
676 LWS_VISIBLE LWS_EXTERN void
677 lwsl_hexdump_level_cx(lws_log_cx_t *cx, lws_log_prepend_cx_t prep, void *obj,
678  int hexdump_level, const void *vbuf, size_t len);
679 
690 LWS_VISIBLE LWS_EXTERN void
691 lwsl_hexdump(const void *buf, size_t len);
692 
696 static LWS_INLINE int lws_is_be(void) {
697  const int probe = ~0xff;
698 
699  return *(const char *)&probe;
700 }
701 
721 LWS_VISIBLE LWS_EXTERN void
722 lws_set_log_level(int level, lws_log_emit_t log_emit_function);
723 
733 LWS_VISIBLE LWS_EXTERN void
734 lwsl_emit_syslog(int level, const char *line);
735 
749 LWS_VISIBLE LWS_EXTERN void
750 lwsl_emit_stderr(int level, const char *line);
751 
763 LWS_VISIBLE LWS_EXTERN void
764 lwsl_emit_stderr_notimestamp(int level, const char *line);
765 
775 LWS_VISIBLE LWS_EXTERN int
776 lwsl_visible(int level);
777 
778 struct lws;
779 
780 LWS_VISIBLE LWS_EXTERN const char *
781 lws_wsi_tag(struct lws *wsi);
782 
783 LWS_VISIBLE LWS_EXTERN void
784 lwsl_refcount_cx(lws_log_cx_t *cx, int _new);
785 
lwsl_hexdump_level
LWS_VISIBLE LWS_EXTERN void lwsl_hexdump_level(int level, const void *vbuf, size_t len)
lwsl_visible
LWS_VISIBLE LWS_EXTERN int lwsl_visible(int level)
lws_set_log_level
LWS_VISIBLE LWS_EXTERN void lws_set_log_level(int level, lws_log_emit_t log_emit_function)
lwsl_timestamp
LWS_VISIBLE LWS_EXTERN int lwsl_timestamp(int level, char *p, size_t len)
lwsl_emit_stderr_notimestamp
LWS_VISIBLE LWS_EXTERN void lwsl_emit_stderr_notimestamp(int level, const char *line)
lwsl_hexdump
LWS_VISIBLE LWS_EXTERN void lwsl_hexdump(const void *buf, size_t len)
lwsl_emit_stderr
LWS_VISIBLE LWS_EXTERN void lwsl_emit_stderr(int level, const char *line)
lwsl_emit_syslog
LWS_VISIBLE LWS_EXTERN void lwsl_emit_syslog(int level, const char *line)
lws_log_cx
Definition: lws-logs.h:80
lws_log_cx::lll_flags
uint32_t lll_flags
Definition: lws-logs.h:98
lws_log_cx::refcount
int32_t refcount
Definition: lws-logs.h:100
lws_log_cx::prepend
lws_log_prepend_cx_t prepend
Definition: lws-logs.h:89
lws_log_cx::stg
void * stg
Definition: lws-logs.h:96
lws_log_cx::opaque
void * opaque
Definition: lws-logs.h:94
lws_log_cx::refcount_cb
lws_log_use_cx_t refcount_cb
Definition: lws-logs.h:85
lws_log_cx::parent
struct lws_log_cx * parent
Definition: lws-logs.h:92